List the most referenced tables in a database (by FK) in Azure SQL Database

The query below lists tables that are most referenced by other tables with foreign keys. Those are the dictionary tables such as Address or Customer. In a data warehouses those are dimension tables.

See also:


select schema_name(tab.schema_id) + '.' + as [table],
    count( as [references],
    count(distinct fk.parent_object_id) as referencing_tables
from sys.tables as tab
    left join sys.foreign_keys as fk
        on tab.object_id = fk.referenced_object_id
group by schema_name(tab.schema_id),
having count( > 0
order by 2 desc


  • table - name of the table with schema name
  • references - number of foreign keys referencing to this table
  • referencing_tables - number of different tables referencing to this table


  • One row: represents one table in a database
  • Scope of rows: tables being used in foreign keys as primary key table
  • Ordered by: number of foreign keys in descending order

Sample results

List of most referenced tables in the AdventureWorksLT database. SalesLT.Address table is referenced 3 times from 2 different tables.

Comments are only visible when the visitor has consented to statistics cookies. To see and add comments please accept statistics cookies.
There are no comments. Click here to write the first comment.